Program that can track a large number of satellites, display the satellite data in lists and/or show the satellites on maps.
http://groundstation.sourceforge.net/?gpredict
Construction tips to build a amateur radio satellite tracking dual-axis rotor controller using a PIC16F877 IC.
http://www.geocities.com/yyz228
Visual satellite tracking tle's and software with predictions for the Austin, TX area.
http://users2.ev1.net/~mmccants/
Given a file with satellites' Two-Line Element (TLE) you can calculate a list with the azimuth, elevation and range for any point on earth.
http://www.golombek.com/sat/
Article containing information, predictions, and further links.
http://www.assa.org.au/observing/iridium/
Information about AO-10, including status updates on a periodic basis.
http://www.cstone.net/~w4sm/AO-10.html
Issued twice a month, and describes all space launches, including piloted missions and automated satellites.
http://www.planet4589.org/space/jsr/jsr.html
Windows tracking software; features include 3D maps and can track several hundred satellites simultaneously.
http://www.satscape.co.uk